What is Google Gears and how is it different from Google Chrome?

A plugin for browsers which give them ability to run more complex applications of web than they are running right now is called Google Gears. Google is still trying to move onto the desktop. It has one goal currently on which it is working is "Google Office". It is a free online alternative to Microsoft Office. Gears gives the facility to the existing browsers to run these future apps. Google CHrome comes with Gears built in.